Description
The AS824 Digital Sound Level Meter is a professional Type 2 sound level meter engineered for accurate measurement of sound pressure levels across a wide range of industrial, commercial, and environmental applications. Designed in accordance with IEC651 Type 2 and ANSI S1.4 Type 2 standards, the instrument delivers dependable performance for professionals who require reliable noise monitoring.
With a measuring range from 30 dB to 130 dB, the AS824 is suitable for measuring workplace noise, machinery operation, production facilities, construction sites, schools, hospitals, offices, entertainment venues, and environmental noise levels. The selectable A and C frequency weighting enables users to measure sound according to different international assessment methods, while Fast and Slow time weighting provides flexibility for capturing rapidly changing or relatively stable noise conditions.
The large LCD display features 0.1 dB resolution together with an analogue bar graph, allowing users to monitor changing sound levels quickly and accurately. The built-in Maximum Hold function records peak sound levels, making the instrument particularly useful for equipment inspections and occupational noise assessments.
For advanced applications, the AS824 includes both AC and DC analogue outputs, enabling connection to external data loggers, oscilloscopes, frequency analyzers, level recorders, and other monitoring equipment for continuous analysis or recording.
Every AS824 supplied by us includes a calibration certificate, ensuring confidence in the instrument’s performance right out of the box. Whether you are a safety officer, environmental consultant, maintenance engineer, facility manager, or quality control professional, the AS824 provides a practical and cost-effective solution for accurate sound level measurement.
Typical Applications
- Workplace noise monitoring
- Occupational health and safety inspections
- Factory and manufacturing facilities
- Machinery and equipment noise measurement
- Environmental noise surveys
- Building and facility management
- HVAC system testing
- Construction site monitoring
- Educational institutions and laboratories
- Entertainment venues and public facilities
Why Buy from us?
- ✔ Singapore Supplier
Purchase from a trusted Singapore supplier specialising in professional measurement instruments. - ✔ Factory Calibration Certificate Included
Each AS824 is supplied with a factory-issued calibration certificate for added confidence. - ✔ Technical Support
We assist customers in selecting the right instrument for their measurement requirements. - ✔ Quality Measurement Instruments
We supply reliable testing and measuring equipment used across industrial, engineering, research, and maintenance sectors. - ✔ 90-Day Warranty
The AS824 is backed by a 90-day warranty against manufacturing defects.
Product Specifications
| Model | AS824 |
|---|---|
| Standards | IEC651 Type 2 & ANSI S1.4 Type 2 |
| Accuracy | ±1.5 dB |
| Frequency Range | 31.5 Hz to 8 kHz |
| Linearity Range | 50 dB |
| Measuring Range | 30–130 dBA, 35–130 dBC |
| Frequency Weighting | A, C |
| Display | 4-digit LCD with analogue bar graph |
| Resolution | 0.1 dB |
| Display Update | 0.5 second |
| Bar Graph | 50 dB scale with 1 dB resolution (50 ms update) |
| Measurement Ranges | 30–80 dB, 50–100 dB, 80–130 dB, 30–130 dB |
| Over Range Indication | Displays over-range indication |
| Under Range Indication | Displays under-range indication |
| AC Output | 0.707 Vrms at full scale (Approx. 600 Ω output impedance) |
| DC Output | 10 mV/dB (Approx. 100 Ω output impedance) |
| Time Weighting | Fast / Slow |
| Microphone | 1/2 inch Electret Condenser Microphone |
| Maximum Hold | Yes |
| Power Supply | 1 × 9V Battery |
| Initialisation Time | Approximately 10 seconds after power on |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 10% to 80% RH |
| Storage Temperature | -10°C to 60°C |
| Storage Humidity | 10% to 70% RH |
| Dimensions | 221 × 66 × 33 mm |
| Weight | 300 g (including battery) |
| Package Includes | AS824 Digital Sound Level Meter, User Manual, Calibration Certificate, 9V Battery |
| Warranty | 90 Days |
